Patent US4880903A successfully refreshed from Google Patents.
US4880903A
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US
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Polyketone from carbon monoxide and mixture of olefins
Assignee: Shell USA Inc
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Filing: 1988-08-05
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Granted: 1989-11-14
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Expires: 2008-08-05
Abstract
Abstract The invention is a linear random terpolymer comprised of repeating units of --CO--(C 2 H 4 )-- and units of --CO--(C x H y )-- where x is greater than 2 and less than 20, having a melting point between about 150° C. and about 245° C. The invention also concerns a process to prepare a polymer having a melting point less than about 245° C. which comprises contacting carbon monoxide and ethylene in the presence of one or more hydrocarbons C x H y containing an olefinically unsaturated --CH═CH-- group, where x is greater than 2 and less than 20, with a suitable catalyst and under conditions effective to prepare a linear random polymer having units of the formula --CO--(C 2 H 4 )-- and units of the general formula --CO--(C x H y )--, and having a melting point less than about 245° C.
Inventors
- 👤 Johannes A. M. Van Broekhoven
- 👤 Eit Drent
- 👤 Ebel Klei
- 👤 Kenzie Nozaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:32
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
79 words
A linear polymer consisting essentially of an average of n units with the formula --CO--(C 2 H 4 )-- and an average of m units with the general formula --CO--(C x H y )-- wherein the units are randomly distributed in the polymer, the quotient m/n is between about 0.33 and about 0.007, x is greater than 2 and less than 20, y is 2x, and the polymer has a melting point between about 150° C. and 245° C.
Claim 2
Dependent Claim
79 words
A linear polymer consisting essentially of an average of n units with the formula --CO--(C 2 H 4 )-- and an average of m units with the general formula --CO--(C x H y )-- wherein the units are randomly distributed in the polymer, the quotient m/n is between about 0.33 and about 0.007, x is greater than 2 and less than 20, y is 2x, and the polymer has a melting point between about 150° C. and 245° C.
Claim 3
Dependent Claim
69 words
A linear polymer consisting of an average of n repeating units of the formula --CO--(C 2 H 4 )-- and an average of m repeating units of the formula --CO--(C 3 H 6 )--, wherein the units are randomly distributed in the polymer, said polymer having an m/n quotient between about 0.33 and about 0.023, and said polymer having a melting point between about 150° C. and 245° C.
Claim 4
Dependent Claim
69 words
A linear polymer consisting of an average of n repeating units of the formula --CO--(C 2 H 4 )-- and an average of m repeating units of the formula --CO--(C 3 H 6 )--, wherein the units are randomly distributed in the polymer, said polymer having an m/n quotient between about 0.33 and about 0.023, and said polymer having a melting point between about 150° C. and 245° C.
Claim 5
Dependent Claim
17 words
The polymer of claim 1 having a melting point between about 170° C. and about 240° C.
Claim 6
Dependent Claim
17 words
The polymer of claim 1 having a melting point between about 195° C. and about 235° C.
Claim 7
Dependent Claim
21 words
The polymer of claim 1 having a Limiting Viscosity Number in m-cresol at 100° C. between about 0.2 and 5.0 dl/g.
Claim 8
Dependent Claim
21 words
The polymer of claim 1 having an Limiting Viscosity Number in m-cresol at 100° C. between about 0.3 and 4.5 dl/g.
Claim 9
Dependent Claim
21 words
The polymer of claim 1 having an Limiting Viscosity Number in m-cresol at 100° C. between about 0.4 and 4.0 dl/g.
Claim 10
Dependent Claim
26 words
The polymer of claim 1 having units with the general formula --CO--(C x H y )--, where x is greater than 2 and less than 10.
Claim 11
Dependent Claim
25 words
The polymer of claim 1 having units with the formula --CO--(C 2 H 4 )-- and units with the formula --CO--(C 3 H 6 )--.
Claim 12
Dependent Claim
25 words
The polymer of claim 1 having units with the formula --CO--(C 2 H 4 )-- and units with the formula --CO--(C 4 H 8 )--.
Claim 13
Dependent Claim
25 words
The polymer of claim 1 having units with the formula --CO--(C 2 H 4 )-- and units with the formula --CO--(C 8 H 16 )--.
Claim 14
Dependent Claim
84 words
An article of manufacture comprising a linear polymer consisting essentially of an average of n units with the formula --CO--(C 2 H 4 )-- and an average of m units with the general formula --CO--(C x H y )-- wherein the units are randomly distributed in the polymer, the quotient m/n is between about 0.33 and about 0.007, x is greater than 2 and less than 20, y is 2x, and the polymer has a melting point between about 150° C. and 245° C.
Claim 15
Dependent Claim
84 words
An article of manufacture comprising a linear polymer consisting essentially of an average of n units with the formula --CO--(C 2 H 4 )-- and an average of m units with the general formula --CO--(C x H y )-- wherein the units are randomly distributed in the polymer, the quotient m/n is between about 0.33 and about 0.007, x is greater than 2 and less than 20, y is 2x, and the polymer has a melting point between about 150° C. and 245° C.
Claim 16
Dependent Claim
73 words
An article of manufacture comprising a linear polymer consisting of an average of n repeating units of the formula --CO--(C 2 H 4 )-- and an average of m repeating units of the formula --CO--(C 3 H 6 )--, wherein the units are randomly distributed in the polymer, said polymer having an m/n quotient between 0.33 and about 0.023, and said polymer having a melting point between about 150° C. and 245° C.
Claim 17
Dependent Claim
73 words
An article of manufacture comprising a linear polymer consisting of an average of n repeating units of the formula --CO--(C 2 H 4 )-- and an average of m repeating units of the formula --CO--(C 3 H 6 )--, wherein the units are randomly distributed in the polymer, said polymer having an m/n quotient between 0.33 and about 0.023, and said polymer having a melting point between about 150° C. and 245° C.
Claim 18
Dependent Claim
19 words
The article of claim 12, wherein the polymer has a melting point between about 170° C. and 240° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-13 | 1993-05-15 | 1993-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-13 | 1997-05-15 | 1997-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-13 | 2001-05-15 | 2001-11-14 | $7700.00 | Window Closed / Lapsed |